Income Tax - Additional Information (Detail) $ in Thousands				12 Months Ended
	Dec. 01, 2013	Oct. 19, 2012 USD ($) employee	Oct. 11, 2011	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Income Tax Examination [Line Items]
Unremitted earnings for foreign subsidiaries				$ 62,200
Preferential tax rate	4.00%		7.00%	4.00%
Commitments to maintain tax exemption grant, minimum number of employees to be maintained, second period | employee		700
Commitments to maintain tax exemption grant, investments		$ 200,000
Commitments to maintain tax exemption grant, investment increment over four year cycle		$ 50,000
NOL carryforwards available to offset future taxable income				$ 200
Unrecognized tax benefits				9,146	$ 9,238	$ 9,148	$ 12,219
Unrecognized tax benefits (expense)				(400)	400	$ (800)
Income tax benefit (expense)				$ 2,000	$ 1,600
Income Tax
Income Tax Examination [Line Items]
Tax exemption period		15 years
Puerto Rico
Income Tax Examination [Line Items]
Commitments to maintain tax exemption grant, percentage of resident employees		80.00%